SOLUTION: The area of a rectangle is 48 square centimeters. If the width is 1/3 of the lenght, find the dimensions of the rectangle.

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Question 171299: The area of a rectangle is 48 square centimeters. If the width is 1/3 of the lenght, find the dimensions of the rectangle.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
xy=48
x=y/3
y/3*y=48
y^2/3=48
y^2=3*48
y^2=144
y=sqrt144
y=12 ans.
x=12/3
x=4 ans.
Proof:
4*12=48
48=48